I'm sure you know about Echinacea by now. Its pretty much every wear. I found this bit of inflammation for you:
"Scientific studies now validate Echinacea's traditional usage as a topical agent to help the body repair skin wounds, and internally to enhance the immune system. The active constituents in Echinacea which are thought to bolster the body's defense are known as polysaccharides. Polysaccharides stimulate the activity of macrophages, white blood cells which destroy bacteria, viruses, other foreign invaders, and even wayward cells. It also activates the body's production of interferon, a specific protein which protects cells against the invasion of viruses."
As for Etsy there is Tincture and dried herbs on there as well.
You can get a 1 oz bottle of Echinacea Tincture for $16.00 from
Also a 2 oz Lemon Balm tincture for $12.95 from
and don't forget the dried herbs and spices you might need as well!